Question

Fill in the blank to make the expression a perfect square.

u^2-16u+?

Answer 1

\[u^{2}-16u+?\]

Answer 2

divide -16 by 2 and square it.

Answer 3

its what you would do to complete the square, which regardless of what anyone tells you (satellite <.<), is a great technique!

Answer 4

\[(-\frac{16}{2})^2 = 64\]
so:
\[u^2-16u+ 64 \Rightarrow (u-8)^2\]

Answer 5

oya i remember now thanks